LOINCActiveObservation

LOINC Code 98032-6: Fetal body weight/Heaviest fetus body weight US+Calculated

98032-6 is a LOINC code used to identify Fetal body weight/Heaviest fetus body weight US+Calculated in laboratory and clinical observation data. You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges. LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Body weight.current fetus/Body weight.heaviest fetus. It is commonly used with the system or sample type ^Fetuses.

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

What is this code?

LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Body weight.current fetus/Body weight.heaviest fetus. It is commonly used with the system or sample type ^Fetuses.

When is it used?

  • Used in lab systems, EHRs, and clinical data exchange.
  • May identify a test, observation, survey item, or clinical document request rather than a diagnosis.
  • Status: ACTIVE
  • Order vs observation: Observation
  • Method: US+Calculated

What it does not mean

  • The code identifies the observation or test, not the actual result.

Key facts

Fetal body weight/Heaviest fetus body weight US+Calculated
Body weight.current fetus/Body weight.heaviest fetus
The ratio of the body weight of one fetus compared to the weight of the heaviest fetus, also known as the estimated fetal weight ratio or EFWR, is a measure of discordance between multiple fetuses in a single pregnancy. It is used to calculate the estimated fetal weight discordance (EFWD) [LOINC98031-8], where EFWD = 1 - EFWR.
Bdy weight; bod; Bodies; Calc; Calculation; Echography; EFWR; Estimated fetal weight ratio; Fetal; Heaviest fetus wt; Mass concentration ratio; Mass ratio; MCRto; OBSTERICAL; OBSTERICAL.ULTRASOUND; Obstetrical; Obstetrics; Point in time; QNT; Quan; Quant; Quantitative; Random; Sonogram; Sonograph; Sonography; ULS; Ultrasound; US Calc; Wt; Wt current fetus

Where you may see this code

You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges.

Common synonyms

Fetal body weight/Heaviest fetus body weight US+CalculatedFetal bdy wt/Heaviest fetus wt US+CalcBody weight.current fetus/Body weight.heaviest fetusOB.USMRtoPt^Fetuses

Frequently asked questions

Code details

Code98032-6
SystemLOINC
Display nameFetal body weight/Heaviest fetus body weight US+Calculated
DescriptionBody weight.current fetus/Body weight.heaviest fetus
Short nameFetal bdy wt/Heaviest fetus wt US+Calc
ComponentBody weight.current fetus/Body weight.heaviest fetus
PropertyMRto
TimingPt
System (specimen)^Fetuses
ScaleQn
MethodUS+Calculated
ClassOB.US
Example units%
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.70
Last changed2.70

Part names

Body weight.current fetus/Body weight.heaviest fetusMRtoPt^FetusesQnUS+CalculatedMass RatioPoint in time (spot)

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from LOINC. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

LOINC Code 98032-6 | HealthAssure